greenchemistry

8/10/2019 Greenchemistry

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Professor Hector R RodriguezSchool of BusinessMount Ida College



Course Map – Topics Covered in Course• Society

– The Corporation and Its Stakeholders

– People for the Ethical Treatment of Animals – Corporate Citizenship – The Social Responsibility of Business – The Shareholder Primacy Norm – CSR, Citizenship and Sustainability Reporting – Responsible Investing – The Community and the Corporation – Taxation and Corporate Citizenship – Corporate Philanthropy Programs – Employees and the Corporation – Managing a Diverse Workforce

• Environment – A Balanced Look at Climate Change

– Non-anthropogenic Causes of Climate Change – Sulfates, Urban Warming and Permafrost – Conventional Energy – The Kyoto Protocol – Green Building – Green Information Technology – Transportation, Electric Vehicles and the

Environment – Geo-Engineering – Carbon Capture and Storage – Renewable Energy – Solid, Toxic and Hazardous Waste – Forests, Paper and Carbon Sinks – Life Cycle Analysis – Green Chemistry – Water Use and Management – Water Pollution – Management Systems



Green Chemistry is…



• It represents a major paradigm shift that focuses on

environmental protection at the design stage of product andmanufacturing processes. – It is an innovative way to deal with chemicals before they become

hazards, with the goal of making chemicals and products ―benignby design.

– For example, if the chemical synthesis is not compromised, whichof the two chemicals below should we use?

Source: California Green Chemistry Initiative: (2008)

Why Green Chemistry?

OR

Carcinogenic non-Carcinogenic



• Green chemistry is

an opportunity to spurthe next industrialrevolution throughhuman ingenuity and

creativity.• Advancing green

chemistry is anopportunity to make asafer and moreefficient world withless waste.

Green Chemistry Benefits

Source: California Green Chemistry Initiative: (2008)



Green Chemistry Principles



The 12 Principles of Green Chemistry

1. Prevention

– It is better to prevent waste than to treat or clean up waste afterit has been created.

2. Atom Economy – Synthetic methods should be designed to maximise the

incorporation of all materials used in the process into the finalproduct.

3. Less Hazardous Chemical Synthesis – Wherever practicable, synthetic methods should be designed

to use and generate substances that possess little or no toxicityto people or the environment.




7. Design for Degradation

– Chemical products should be designed so that at the end oftheir function they break down into innocuous degradationproducts and do not persist in the environment.

8. Real-time Analysis for Pollution Prevention – Analytical methodologies need to be further developed to allow

for real-time, in-process monitoring and control prior to theformation of hazardous substances.

9. Inherently Safer Chemistry for Accident Prevention – Substances and the form of a substance used in a chemical

process should be chosen to minimise the potential forchemical accidents, including releases, explosions, and fires.




10. Use of Renewable Feed stocks

– A raw material or feedstock should be renewable rather thandepleting whenever technically and economically practicable.

11. Reduce Derivatives – Unnecessary derivatization (use of blocking groups,

protection/de-protection, and temporary modification ofphysical/chemical processes) should be minimised or avoided ifpossible, because such steps require additional reagents andcan generate waste.

12. Catalysis – Catalytic reagents (as selective as possible) are superior to

stoichiometric reagents.



How it Fits in the Sustainability Framework

Green chemistry relies upon lifecycle thinking to bring their

concepts to fruition; it serves to achieve the ultimate goal of asustainable economy and society.



Life Cycle Thinking



Green Chemistry at Work



Conclusion

• The use of toxic chemicals in society is significant

• Green Chemistry aims to reduce or eliminate thegeneration of toxics in manufacturing processes – It is a subset of Life Cycle Thinking – It is an innovative way to deal with chemicals before they become

hazards, with the goal of making chemicals and products ―benignby design.

greenchemistry

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